S-90044A173 5/8"-11 x 2 1/2" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Superior corrosion resistance from the black-oxide finish extends service life by protecting against rust and wear in harsh industrial environments.
- Precise Class 3A thread fit provides consistent, secure fastening with minimal play, enhancing assembly accuracy and reducing rework.
- Coarse UNRC threads enable quick installation and removal, saving time in maintenance and production cycles.
- High hardness (Rockwell C37) offers excellent resistance to deformation and wear, maintaining fastener integrity over repeated use.
- Fully threaded design allows for adjustable grip length and uniform load distribution, ideal for varied material thicknesses.
- Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial components.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges, such as vibration loosening and corrosion in heavy machinery. The coarse UNRC threads with a Class 3A fit deliver tight tolerances, minimizing backlash in high-vibration environments like automotive assembly or construction equipment. Made from alloy steel and treated with a durable black-oxide coating, it resists moisture and chemicals, prolonging lifespan in outdoor or corrosive settings. With a high tensile strength of 170,000 psi and Rockwell C37 hardness, it withstands extreme loads without stripping, making it ideal for critical applications in aerospace, manufacturing, and structural frameworks where reliability is paramount.
Specification Summary & Compliance
This product features a 5/8"-11 thread size with coarse UNRC threads and a Class 3A fit for precise dimensional accuracy. It adheres to ASTM A574 specifications, ensuring consistent manufacturing quality. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety standards for industrial use.
